-- File:	GeomFill_PlanFunc.cdl
-- Created:	Thu Oct 29 10:47:24 1998
-- Author:	Philippe MANGIN
--		<pmn@sgi29>
---Copyright:	 Matra Datavision 1998


private  class PlanFunc from GeomFill   
inherits  FunctionWithDerivative from math

	---Purpose: 

uses 
  HCurve  from Adaptor3d, 
  Pnt     from  gp, 
  Vec     from  gp, 
  XYZ     from  gp 
  
is 
    Create(P  :  Pnt;  V  :  Vec;  C  :  HCurve  from  Adaptor3d)   
    returns  PlanFunc from GeomFill;

    Value(me: in out; X: Real; F: out Real)
        ---Purpose: computes the value <F>of the function for the variable <X>.
    	--          Returns True if the calculation were successfully done, 
    	--          False otherwise.

    returns Boolean
    is redefined;
 
    Derivative(me: in out; X: Real; D: out Real)
         ---Purpose: computes the derivative <D> of the function 
         --          for the variable <X>.
    	--           Returns True if the calculation were successfully done, 
    	--           False otherwise.

    returns Boolean
    is redefined;    

    Values(me: in out; X: Real; F, D: out Real)
    	---Purpose: computes the value <F> and the derivative <D> of the 
    	--          function for the variable <X>.
    	--          Returns True if the calculation were successfully done,
    	--          False otherwise.
    returns Boolean
    is redefined;  
     
    D2(me:in  out;  X:Real;  F,  D1,  D2: out Real) 
    is  static; 
     
    DEDT(me :  in  out;  X:Real; 
         DP, DV  :  Vec; 
         DF  :  out  Real) 
    is  static;   
     
    D2E(me :  in  out;  X:Real; 
        DP, D2P  :  Vec;  
	DV,  D2V :  Vec;
        DFDT,  D2FDT2,  D2FDTDX :  out  Real) 
    is  static;     
    
fields 
  myPnt  :  XYZ; 
  myVec  :  XYZ; 
  V      :  XYZ; 
  G      :  Pnt; 
  myCurve  :  HCurve  from  Adaptor3d;
end PlanFunc;